Poly Frequency Expanding File offers a fully expanding bottom so it can stand freely on a desk to allow easy access to contents. Unique Frequency embossing pattern adds style, yet remains professional. Durable poly file resists tears and repels moisture for years of use. Material is archival-safe and acid-free. Purple protective cover flap is secured by an elastic cord-and-button closure. Inside pockets with clear indexed dividers distinguish this file from a normal file. File includes 12 expandable pockets and customizable tab inserts. Each pocket expands more than 1".